| GO | Name | 
		| GO:0004397 | histidine ammonia-lyase activity | 
		| GO:0005829 | cytosol | 
		| GO:0006548 | histidine catabolic process | 
		| GO:0016841 | ammonia-lyase activity | 
		| GO:0019556 | histidine catabolic process to glutamate and formamide | 
		| GO:0019557 | histidine catabolic process to glutamate and formate |